include/Geant4/G4INCLPhaseSpaceKopylov.hh

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0025 //
0026 // INCL++ intra-nuclear cascade model
0027 // Alain Boudard, CEA-Saclay, France
0028 // Joseph Cugnon, University of Liege, Belgium
0029 // Jean-Christophe David, CEA-Saclay, France
0030 // Pekka Kaitaniemi, CEA-Saclay, France, and Helsinki Institute of Physics, Finland
0031 // Sylvie Leray, CEA-Saclay, France
0032 // Davide Mancusi, CEA-Saclay, France
0033 //
0034 #define INCLXX_IN_GEANT4_MODE 1
0035
0036 #include "globals.hh"
0037
0038 #ifndef G4INCLPHASESPACEKOPYLOV_HH
0039 #define G4INCLPHASESPACEKOPYLOV_HH
0040
0041 #include "G4INCLThreeVector.hh"
0042 #include "G4INCLParticle.hh"
0043 #include "G4INCLIPhaseSpaceGenerator.hh"
0044 #include <vector>
0045
0046 namespace G4INCL {
0047   /// \brief Generate momenta using the Kopylov method
0048   class PhaseSpaceKopylov : public IPhaseSpaceGenerator {
0049
0050     public:
0051       /** \brief Generate momenta according to a uniform, non-Lorentz-invariant phase-space model
0052        *
0053        * This function will assign momenta to the particles in the list that is
0054        * passed as an argument. The event is generated in the CM frame.
0055        *
0056        * \param sqrtS total centre-of-mass energy of the system
0057        * \param particles list of particles
0058        */
0059       void generate(const G4double sqrtS, ParticleList &particles);
0060
0061     private:
0062       /// \brief Internal function used by the Kopylov algorithm
0063       G4double betaKopylov(G4int K) const;
0064
0065       std::vector<G4double> masses;
0066       std::vector<G4double> sumMasses;
0067       ThreeVector PFragCM, PRestCM;
0068       ThreeVector boostV;
0069   };
0070 }
0071
0072 #endif // G4INCLPHASESPACEKOPYLOV_HH